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Thermo‐mechanical , rheological and morphology properties of polypropylene composites: Residual CaCO 3 as a sustainable by‐product

2021; Wiley; Volume: 42; Issue: 9 Linguagem: Inglês

10.1002/pc.26175

1548-0569

Laongdaw Techawinyutham, Naruemon Sumrith, Rapeeporn Srisuk, Wiroj Techawinyutham, Suchart Siengchin, Sanjay Mavinkere Rangappa,

biodegradable polymer synthesis and properties

Abstract This research looked into the possibility of using residual calcium carbonate (CaCO 3 ) as a by‐product of the cane sugar production process combined with polypropylene (PP) to replace commercial CaCO 3 . Using a co‐rotating twin‐screw extruder, the CaCO 3 /PP composites were made in the following ratios: 10:90, 20:80, 30:70, 40:60, and 50:50, with the addition of maleic anhydride polypropylene at 5 wt% of CaCO 3 . In terms of mechanical properties, thermal properties, rheological properties, and morphology, the effect of the residual CaCO 3 filler reinforced in PP matrix was compared to commercial CaCO 3 /PP composites. The findings showed that residual CaCO 3 from the sugar production process can replace the use of industrial CaCO 3 mixing in plastic and can add value to the residual CaCO 3 . The residual CaCO 3 /PP composites had better tensile modulus, flexural strength, flexural modulus, impact resistance, and thermal stability than commercial CaCO 3 /PP composites, according to the findings. The composites' tensile modulus, flexural modulus, hardness, thermal stability, and rheological properties improved as the CaCO 3 loading increased.